The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{sakai:erl2019-tucoybs01}
\bibitem{sakai:erl2019-tucoybs01}
H. Sakai, T. Furuya, E. Kako, T. Konomi, T. Miura, F. Qiu, and \emph{et al.},
% H. Sakai, T. Furuya, E. Kako, T. Konomi, T. Miura, F. Qiu, and K. Umemori,
% H. Sakai \emph{et al.},
\textquotedblleft{KEK ERL SRF Operation Experience}\textquotedblright,
% --- abbreviated form (UNpublished paper) - JACoW template Feb 2018 ---
presented at ERL'19, Berlin, Germany, Sep. 2019, paper TUCOYBS01, unpublished.